Observed on the last Monday of each May, Memorial Day honors those who died while in service of the U.S. military. Memorial Day is a popular reason for many family visits to U.S. monuments -- as well as the unofficial start to summer for many Americans.

While we honor and remember those who died in their service, it's also a good time to take a moment to learn about the histories and traditions of Memorial Day at https://www.history.com/topics/holidays/memorial-day-history.